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Mon, 10 Aug 2026 21:09:11 -0700 (PDT) From: Hemanth Selam To: Sean Christopherson , Paolo Bonzini , Shuah Khan Cc: kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/1] KVM: selftests: SEV: Sanity check the launch measurement Date: Tue, 11 Aug 2026 09:38:57 +0530 Message-ID: <20260811040858.1984593-1-hemanth.selam@gmail.com> X-Mailer: git-send-email 2.43.7 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This replaces the TODO in test_sev() with a sanity check of the launch measurement returned by KVM_SEV_LAUNCH_MEASURE. A full attestation-style validation isn't possible from the selftest because userspace does not possess the transport keys the PSP uses to derive the measurement. The check therefore verifies the firmware-reported blob length and that the measurement and the nonce are non-zero, with the blob layout described by a struct so the buffer and field sizes derive from a single definition. No functional changes from v1; this posting only adds a cover letter. v1: https://lore.kernel.org/all/20260807121308.1885737-1-hemanth.selam@gmail.com/ Hemanth Selam (1): KVM: selftests: SEV: Sanity check the launch measurement tools/testing/selftests/kvm/include/x86/sev.h | 12 +++++++ tools/testing/selftests/kvm/lib/x86/sev.c | 11 +++++-- .../selftests/kvm/x86/sev_smoke_test.c | 33 +++++++++++++++++-- 3 files changed, 52 insertions(+), 4 deletions(-) -- 2.43.7